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Odor

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Information Content Of Prey Odor Plumes: What Do Foraging Leach's Storm Petrels Know?, Larry Clark, Pankaj Shah Jan 1992

Information Content Of Prey Odor Plumes: What Do Foraging Leach's Storm Petrels Know?, Larry Clark, Pankaj Shah

Larry Clark

Electrophysiological responses to odor have been recorded for concen­ trations as low as 0.01 ppm for Manx shearwaters Puffinus puffinus and Black-footed Albatrosses Diomedea nigripes, indicating that relative to most birds, procellariiforms have a keen sense of smell (Wenzel and Sieck 1972, cf.clark 1991; Clark and Smeraski 1990; Clark and Mason 1989). Such acuity is not unexpected, given the extensive development of the olfactory anatomy of these species (Bang and Wenzel 1986). Field observations indi­ cate that Procellariiformes use their sense of smell to locate food (Grubb 1972; Hutchison and Wenzel 1980; Lequette, Verheyden and Jouventin 1989). -_ However, it …


Nf91-16 Removing Smoke Odors From Clothing, Rose Marie Tondl Jan 1991

Nf91-16 Removing Smoke Odors From Clothing, Rose Marie Tondl

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses proper removal of smoke odors from clothing.


Olfactory Discrimination Of Plant Volatiles By The European Starling, Larry Clark, J Russell Mason Jan 1987

Olfactory Discrimination Of Plant Volatiles By The European Starling, Larry Clark, J Russell Mason

Larry Clark

Passerine species that re-use nest sites often incorporate fresh green vegetation into their nests, a behaviour consistent with the possibility that some birds may use chemical properties of plants to counteract the selective potential of parasites and pathogens. We tested adult starlings (Sturnus vulgaris) for their physiological capacity and behavioural ability to detect and discriminate between volatiles emitted from plant material. Multi-unit electrophysiological recordings from olfactory nerves of adults indicated that strong responses were reliably elicited by volatiles from six plant species. After pairings of plant volatiles with gastro-intestinal malaise, birds exhibited conditioned avoidance in behavioural experiments, and made all …


Olfactory Responses Of Aquatic And Terrestrial Salamanders To Air And Waterborne Stimuli, Adam Artz, Wayne Silver, J Russell Mason, Larry Clark Jan 1986

Olfactory Responses Of Aquatic And Terrestrial Salamanders To Air And Waterborne Stimuli, Adam Artz, Wayne Silver, J Russell Mason, Larry Clark

Larry Clark

Electro-olfactograms (EOGs) were used to assess olfactory responding by aquatic larval and terrestrial adult tiger salamanders (Ambystoma tigrinum) to airborne volatile compounds, and volatile and non-volatile compounds in aqueous solution. Both forms of salamander showed saturation effects to presentations of airborne stimuli (Fig. 2). Saturation was not observed, however, to stimulus presentations in aqueous solution (Figs. 2, 3). When threshold values and concentration-response curve parameters were compared, non-volatile amino acids in solution were more potent stimuli for larvae while airborne volatiles were more potent stimuli for adults (Tables 1, 2). We infer that metamorphosis in the tiger salamander is accompanied …


Sective Deficits In The Sense Of Smell Caused By Chemical Modification Of Olfactory Epithelium, J Russell Mason, Larry Clark, Thomas Morton Jan 1984

Sective Deficits In The Sense Of Smell Caused By Chemical Modification Of Olfactory Epithelium, J Russell Mason, Larry Clark, Thomas Morton

Larry Clark

A chemically selective procedure for covalent modification of Schiff base-forming binding sites in proteins is demonstrated in vitro. In vivo studies show that the same procedure produces a selective anosmia ("odor blindness") when applied to the olfactory epithelia of experimental animals. Surgical experiments confirm that the sense of smell is specifically affected.


G77-378 Odor Controls As Affected By Nuisance Laws, John M. Sweeten, Donald R. Levi Jan 1977

G77-378 Odor Controls As Affected By Nuisance Laws, John M. Sweeten, Donald R. Levi

University of Nebraska-Lincoln Extension: Historical Materials

Confined feeding operations are subject to both public and private air pollution regulation. Public regulation is focused primarily on preventing measurable levels of emissions to the atmosphere. On the other hand, subjective human tolerance levels serve as the basis for private regulation of the environment. The impact of public and private regulatory schemes on feedlots will be reviewed in this NebGuide.


Judging Quality In Dairy Products, P. A. Downs Sep 1955

Judging Quality In Dairy Products, P. A. Downs

Nebraska Agricultural Experiment Station: Historical Circulars

In the dairy industry increasing attention is being paid to the question of quality of products. The well established system of buying and selling butter and cheese on the basis of quality by score or grade is practiced in the principal markets of the world. The other dairy products, while not marketed by score, are receiving more and more attention in this respect. As more information becomes available and the judging better standardized, other dairy products will doubtless be sold by grade.


Judging Quality In Dairy Products, P. A. Downs Sep 1941

Judging Quality In Dairy Products, P. A. Downs

Nebraska Agricultural Experiment Station: Historical Circulars

In the dairy industry increasing attention is being paid to the question of quality of products. The well established system of buying and selling butter and cheese on the basis of quality by score or grade is practiced in the principal markets of the world. The other dairy products, while not marketed by score, are receiving more and more attention in this respect. As more information becomes available and the judging better standardized, other dairy products will doubtless be sold by grade.


Judging Quality In Dairy Products, P. A. Downs Feb 1937

Judging Quality In Dairy Products, P. A. Downs

Nebraska Agricultural Experiment Station: Historical Circulars

In the dairy industry increasing attention is being paid to the question of quality of products. The well established system of buying and selling butter and cheese on the basis of quality by score or grade is practiced in the principal markets of the world. The other dairy products, while not marketed by score, are receiving more and more attention in this respect. As more information becomes available and the judging better standardized, other dairy products will doubtless be sold by grade.